Pressure washer with flow control switch
US5529460A · kind A · utility
34Cited by
26References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1993 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Jul 28, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B2203/0205
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure washer is provided with a flow control switch and a bypass passage. The flow control switch shuts the motor of the pressure washer off when fluid is not being supplied to the pressure washer or when the spray gun of the pressure washer is closed. The bypass passage relieves excess outlet pressure and activates the flow control switch when the spray gun is closed. The pressure washer may include a soap pump for injecting soap into low pressure fluid at the inlet of the pressure washer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.